Screening device



Jan. 26 1926.

c. G. KNOBLAUCH scxrsmuue nsvrcn Filed Nov. 25, 1923 2 Shasta-Shut 1Jan. 26 1926. 1,570,897

c. G. KNOBLAUCH SCREENING DEVICE Filed Nov. 26, 1923 2 Sheath-Shut 2 MumPatented Jan. 26, 1926'.

)UNITED STATE-s i 1,570,897 PATENT OFFICE.

CURT G. KNOBLAUCH, F PARK RIDGE, ILLINOIS, ASSIGNOB T O LESLIE IP.GREEN,

, 0F CHICAGO, ILLINOIS.

' scBEEn'iNG DEVICE.

.Appliezaltion filed November 26,1928. Serial No. 677,132. i

To all whom t may concern:

Be it known that I, CURT G. KNOB'LAUCH, a citizen of the United States,and a resident of Park Ridge, county of Cook, and State of Illinois,have invented certain new and useful Improvements in lScreening Devices,of which thefollowing is a specification.

'My invention relates to new and useful improvements in screeningdevices, and more particularly to rotary's'creens, such asare used forscreening' and washing particles of material, such as sand and the like.

An object is to provide such a' device with means for screening thematerial while said material is submerged in the cleaning liquid, forthoroughly cleansing the material.

Another object is to provide such a device with means on the screeningmechanism and movable therewith for elevating, deflecting anddischarging the screened` material.

A further object is to provide screening mechanism with means forvelevating the screened material and means to adjust the capacity ofsaid elevating means.y f

.-And another object is to provide such `a device having a rotary screenmounted to operate in a liquid container, for simultaneously screeningand washing the material in said liquid, and having means on itsperiphery for elevating and deflecting the screened and washed materialout of the container.

Fig. l shows my 'invention in side elevation, partly in section'on line1`1 of Fig. 2;

Fig. 2 is a cross section on line 2-2 .of

Fig. l;

Fig. 3 is a side view, partly in section of a modified form of myinvention;

Fig. 4 is substantially a cross section on line 4-'4 of Fig. 3, and vFig. 5 is across section online 5-5 of Fig. 3.

The preferred form of my invention, illustrted in. Figs. 1 and 2,comprises a receptacle or container for receiving water or any suitableliquid for washing the material which is being screened. A highsupporting and bearing member 11 with a bearing'sleeve 11, and a shortsupporting and bearing member 12 with a bearing sleeve 12 are mounted onthe opposite ends of said container and support the shaft 13 with itsscreen 14 at the desired inclinationor slant and to operate in theliquid in said container 10, suitable retaining collars 15 being pro'-vided on said shaft. The shaft is vfastened to the screen by meansv oftwo or more spiders 16 provided on their arms with shoes 17 whichv arefastened to the screen. A suitable sprocket gear 18 or, suitable drivingelement is fastened on theend of said shaft. )The screen isv-constructed of a strongfma.- terial with a mesh of suitable fineness,one or more gauge of screen being used. Where morethan one gauge or meshof screen is used, the parts or screens are arranged in axial orlongitudinal alignment and according to ineness Aof mesh, the finestmesh 14 being placed atthe receiving end, 'as'shown Means. is providedon' the devicer for elevating the material out of thel container and fordeflecting and discharging it beyond the same, said means preferablyconsisting of one or more members or bars 20 extending outward. andlongitudinally along the .periphery of the screen, and having the louterportion made adjustable .to vary the carrying capacity thereof, which ispreferably done, as shown, by mounting a plate 21 replaceably andadjustably with a slot 22 Vand bolt 23 on the upturned outer flan e 20of said bar. The bar 20 is also detac ably mounted on the screen,preferably by fastening it with bolts 24 on outwardly turned ends 25 oftwo orfmore re-enforcing bands 26 which extend circumferentiallyfof saidscreen.

The-deflecting and dischar e means include a deflecting member or ar 27which is rmounted longitudinally along the periphery of the screen andrearward of each elevating member 20, said members 20 and 27 beingspaced apart providing a discharge opening o-r slot 28 for dischargingthe material29 from the member 20 over` the member 27, and outwardbeyond the container, as shown in dotted lines in Fig. 2. The deflectingmembers 27 are preferably fastened replaceably with bolts 30, on theoutwardly turned ends 25 of bands 26.

The construction is soarranged that each re-enforcing band has anout-turned end 25 for attachment of the delecting member 27 landv alonger out-turned end 25 for attachment of the spaced elevating member20, whether only one set of-such co-operating, elevating and deflectingmembers are used along with one continuous band 26, or whether two setswithJ two semi-circular bands 26, or whether more than two sets ofmembers and bands are used.

In this form of construction the members or bars 27 are extended beyondthe gend bands 26 and the screen and provide end portions 27 which actas means for removing from the container l0 uns'c'reened and oversizedmaterial which is issued from the open discharge end of the rotaryscreen.y

The modified form illustrated in Figs. 3 to 5, inclusive, comprises aliquid container 10, as in the preceding form, for receiving Water orfany .suitable cleaning riluid, and rollers .31are mounted :in bearings32 -on one end .fof the :container and in similar bearings 32 fastenedin a notch 33 at -the other end vof said container; Therollersare`preferably Aflanged to engage bearing bands 34 and 34 on fthenecks ortrunnions 35 and 35 fastened lon the fend members .36.' and 36 which are.suitably fastened onthercylindricalzscreen 37 as with flanges 38, thedevice thus rotatingon such rollersl at .the desiredzslant orinclination. 'A sprocketgear 39 orrsimilar means is mounted on the outerend of trunnion 35 for application of fthe driving power.

.Several screens of various mesh may also beaised in this form andaligned axially, the screen 37 of the linest mesh being placed in the'receiving end. The elevating members cr bars 40have plates 4ladjustably and replaceably mounted withsuitable slots 42 and bolts .43on their outer flanges 40, said bars being removably fastened, as withbolts 44, lto the outwardly-turned ends 45 ofthe reenforcing bands 46,and deflecting members 47 are Vfastened with suitable bolts on theoutwardly-turned ends 45 of said bands 46, ksaid member 40 being spacedfrom.member .47to provideva discharge opening 48, as in the precedingform. 1

ln this form of construction curved plates 50 are mounted in thedischarge end o fithe screen for moving :the oversized and unscreenedmaterial out vthrough the central discharge opening 5l formed intrunnion 35.

In both forms of the invention the bearings are arranged on the fluidcontainer to mount the cylindrical screen at a `suitable angle orinclination, and water or the-desired cleaning'fluid is placed in thecontainer lo substantially the line F indicated in the drawings. Thematerial to bescreened and Washed, such as sand or the like, is then en-Atered through, `the open :upper end or `throughthe receiving trunnionand the cylindrical screen Iis rotated, with ithe :lower part thereofoperating in the fluid, and the contained sand or material being valsomainly submerged under the level of said fiuid and being thussimultaneously screened and cleaned. The elevating members thereuponcarry the screened andcleaned Sandor material upwardly v andv finally`drop it 1hrough the provided discharge slot or 'space .are used, .thermaterial "is graded' according to in'e'ess, "simultaneously andautomatically .discharged and deposited outside of the conv tainer inthe respective positions opposite the :screens `of fthe various mesh,while the oversized and unscreened material is discharged and depositedbeyond thefd'isch'arge end .of-the screen. I

While :I have illustrated and described the vpreferred .form ofconstruction Vfor carrying my :invention into eeet, this is ca pable vofvariation and modification Without departing Vfrom :the spirit of lthe.invention. l, therefore, do :not wish to be limited to theprecisedetai'ls of construction set forth, but desire to availmyselfoff-such variations and n'iodilicatio'ns as-'come Lwithin the scope -ofthe appended fclaims.

Having .described my invention, what I claim fas new vand f desire tosecure by Letters .Patent :is i

l. yA fscreeningfdevice comprisingfa rotary cylindrical screen havingmea-ns mounted longitudinally 1 on the outside 'of #said screen toelevate materiahmeans adjustably mounted onthe outer edge ofsaidrelevatingmeans to-vary the :capacity thereof, and deflecting means.mounted 'rearward of said elevating means to.rdischa'rge the Velevatedmaterial.

2. A screening device comprising :a cylindrical screen,1bar`s detachablymounted longitudinally alongthe outside-of said tscreen to 4rotateftherewith, .and fan adjustable and :replaceable portion Vprovidedatithe outer edge :offeach vbar :for :varying the vcarrying capacity fthereof.

3. A s'screening 'device-comprising :a Vcylindrical screen,re-'en'forcing means including rsectional members mounted 'around theperiphery ofsaid screen, anelevatingmember mounted on the outwardlyturned end `of l each sectional member, and a deflecting member mounted4on an out-rturned :flange at the other end of each sectional f member,adjacent to the elevating vmember which is mounted on the precedingsection-al member.

4. A screening device comprising a 'cylin- Idrical screen,4re-,enforcing means including sectional bands Vmountedcircumferentially on said screen, an elevating bar mounted on one Aend.of each sectional band, means ad- .justably mounted on i. the. outerpart of said bar for adjusting its capacity, and adefiect ing barmounted on the other end of each `sectional y band opposite `to .theelevating band, there being la deflecting bar adjacent and rearward ofeach elevating bar.

5. Ascreenlng devicecomprismg a rotary .mechanism containing a fplurality of. cylindricalscreens of varying mesh alignedaxiah lv, a,pluralityl of 11e-enforcing bandsl mountu lao ed circumferenti ally ofsaid screen, elevating means with adjustable outer portions mounted onsaid bands, and deflect-ing means mounted on said bands to co-operatewith said elevating means.

6. A screening device comprising in combination, a liquid, container, arotary screen operating in said liquid and having a shaft journalled onsaid container, means mounted longitudinally 'on said screen forelevat-l ing and defiecting material from said container, and integralmeans extending from the last said means for removing' unscreenedoversized material from said container.

7. A screening device comprising in combination, a liquid container, arotary screen operating in said liquid and having a shaft journalledlongitudinally on said screen for elevating on said container, barsmountedV screened and Washed material from said container, bars on saidscreen for dei'lecting said material beyond said container, and meansextending beyond said screen for removing the unscreened oversizedmaterial from said container.

8. A screening device comprising a rotary cylindrical screen, barsextending laterally from the periphery of said screen and spacedtherefrom, laterally extending bars mounted rearward of said spaces toco-operate with the iirst bars and deflect material, said second barsextending beyond the screen, and mea-ns for rotatably mounting saidscreen in an inclined position.

In testimony whereof I have signed my name to this specification.

oURT G. KNoBLAUoH.

